The antenna and cable must be carefully matched to ensure a low Standing Wave Ratio(SWR) ( SWR ). 小心地将天线与电缆匹配,以确保低定波比率(SWR)。
This paper introduces a kind of measuring method of standing wave ratio on-line. 驻波比(SWR)是衡量雷达发射机和天馈系统工作状态的一项重要指标。
The utility model has the characteristics of light weight, small dielectric gain loss, low dielectric thermal noise temperature, small input voltage standing wave ratio, etc. 本实用新型具有重量轻、介质增益损失小,介质热噪声温度低、输入电压驻波比(SWR)小等特点。
The Finite Difference Time Domain ( FDTD ) method was used to calculate the Voltage Standing Wave Ratio(SWR) ( VSWR ) of a quasi-Yagi antenna. 介绍时域有限差分(FDTD)法计算准八木天线驻波比(SWR)的算法实现方法。
Since this method took into account the loss caused by viscosity and heat exchange, it could obtain accurate results even in the situation of high frequency and high standing wave ratio. 该方法考虑了粘性耗散和热传导带来的损失,即使在高频、高驻波比(SWR)情况下也能得到准确的测量结果。